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    • 4. 发明授权
    • Coaxial breathing circuit
    • 同轴呼吸电路
    • US4637384A
    • 1987-01-20
    • US702561
    • 1985-02-15
    • Gerhardt P. Schroeder
    • Gerhardt P. Schroeder
    • A61M16/08A61M39/10A61M16/00
    • A61M16/08A61M16/0858A61M2039/1005Y10S128/911Y10S128/912
    • A coaxial breathing circuit is disclosed and which includes an inner tube for supplying fresh gas to a patient, which may contain a vaporized anesthetic for anesthetizing the patient, and a corrugated outer tube for conducting the patient's exhaled gases from the patient. At the patient end, there is allowed a slippage between the inner and outer tubes to provide flexibility of the overall circuit to bending. At the the machine end, the end that is connected to a mahcine supplying the inspiratory gas, a connector provides the means to join the inner and outer tubes to a male coupling or directly to a male fitting on the machine. The corrugated outer tube is joined to the connector and an outlet is provided for the discharge of the exhaled gases. For the coaxial circuit to be operable, the inner tube is sandwiched between the outer diameter of the male coupling and the inner diameter of an opening in the connector. In such way, in the event the inner tube becomes disconnected from the male coupling, the entire connector no longer can maintain its connection to the machine and the coaxial circuit drops off completely, thus the possibility of an inadvertent disconnection from the supply of fresh gas is immediately noticeable by attending personnel.
    • 公开了一种同轴呼吸回路,其包括用于向患者供应新鲜气体的内管,所述内管可包含用于麻醉患者的气化麻醉剂,以及用于从患者导入患者呼出气体的波纹状外管。 在患者端,允许内管和外管之间滑动,以提供整个电路弯曲的柔性。 在机器末端,连接到供应吸气气体的马氏体的端部,连接器提供将内管和外管连接到阳联接器或直接连接到机器上的阳配件的装置。 波纹状外管连接到连接器,并且设置有用于排放呼出气体的出口。 为了使同轴电路可操作,内管被夹在阳联接器的外径和连接器中的开口的内径之间。 以这种方式,如果内管与阳联接器断开连接,则整个连接器不再能够保持其与机器的连接,并且同轴电路完全脱落,因此与新鲜气体供应无意地断开的可能性 参加人员立即引起注意。